Update app.py

app.py

@@ -3,7 +3,7 @@ import os
 import PyPDF2
 import docx
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_cohere import CohereEmbeddings # Use CohereEmbeddings
+from langchain_cohere import CohereEmbeddings 
 from langchain_community.vectorstores import Chroma
 from groq import Groq
 from langchain_core.prompts import PromptTemplate
@@ -19,10 +19,14 @@ from datetime import datetime
 class DocumentProcessor:
     def __init__(self):
         # Using CohereEmbeddings for document processing.
+        # Ensure 'COHERE_API_KEY' and 'GROQ_API_KEY' are set as secrets in Hugging Face.
         if "COHERE_API_KEY" not in os.environ:
             st.error("Cohere API key is required for document processing.")
             st.stop()
-        self.embeddings = CohereEmbeddings(cohere_api_key=os.environ["COHERE_API_KEY"]) # Use CohereEmbeddings
+        self.embeddings = CohereEmbeddings(
+            cohere_api_key=os.environ["COHERE_API_KEY"], 
+            model="embed-english-v3.0"  # Specify the Cohere embedding model
+        )
         self.text_splitter = RecursiveCharacterTextSplitter(
             chunk_size=1000,
             chunk_overlap=200